Hot-water boiler



.3. WGODWARD.

T WATER BOILER.

APPLICATION HLED MN. 0| WIS).

UNITED STATES PATENT OFFICE.

WILLIAM J. WOODWABD, 0F LEETONIA. OHIO.

HOT-WATER BOILER. I

neeaeos.

Specification of Letters Patent.

Patented Jan. 29, race.

Application filed January 10, 1919. Serial No. 270.533.

To all whom it may concern:

Be it known that I, VILLIAM' J. VVoon- WARD, a citizen of the United States, residing at Leetonia, in the county of Columbiana and State of Ohio. have invented new andv useful Improvements in Hotater Boilers, of which the following is a specification.

The invention relates to improvements in hot water boilers, and seeks to provide, as its principal object, a deviceof this character which will have a longer life than devices ordinarily employed for supplying hot water.

A second object resides in a novel arrangement for producing the hot water to be used by means of-heat transferred thereto from either boiler, .to whichthe heat is originally applied. a

water supplied and which furnishes the hot 9 water that is to be used. The water that is used in the outer boiler is always retained therein and circulates only as a result of being brought into contact with the gas heater.

Provision is made for the periodical replenishing of the water in this outer boiler by a valve controlled tap from the supply of the inner boiler.

The invention'is set forth in a specific embodiment, to which, however, it is notto be restricted. An actual reduction topractice may suggest certaln desirable changes or alterations, and the right is claimed to make any which do not deviate from the scope of the subjoined claims.

The invention is clearly illustrated in the accompanying drawings, in which:

Figure 1 is a vertical sectional view through the improved boiler.

Fig. 2 is a top plan view. 7

Fig.3 is a transverse sectional view.

Referring to the drawing, there is shown a boiler 1.1n which there is centrally positioned a second boiler 2 whose bottom rests ing derived from press upon the bottom of the boiler. This second boiler 2 is maintained in its central position w1th1n the outer boiler by appropriate stays 3, affixed between the sides of the two boilers.

The boiler 2 is provided with an appropriate drain 4 which of necessity must be carried through the wall of the outer boiler 1, at which point the outer boiler is appropriately calked to make it water tight.

The cold water is admitted to the boiler 2 through the pipe '5,which connects with the cold water supply and which passes through the top of the inner boiler 2 and terminates nearthe bottom oft-he latter, the point where this pipe passes through the pipe of the boiler 2 being appropriately calked. A pipe 6 connects with the top of the boiler '2 and opens into the interior of the latter, this pipe connecting with various devices with which it is deslred to supply hot water.

The outer boiler 1 is designed to carry a uantit' of water which com )letelv envelops the boiler 2, and this water is intended to be heated by a gas heater 7 pro- "ided with a conventional coil 8 and gas burner 9 and with a suitable source of gas supply conducting the gas to the burner.

- The upper end of the coil 8 connects with the pipe 11 which communicates with the interior of the boiler 1 at a point above the top of the boiler 2. The lower end of the coil 8 connects with the pipe 12 which communicates with the interior boiler 1 near its bottom. A drain cook 13 is connected in the pipe 12 to permit the boiler 1 to be drained. when desired.

A tap 14 is taken oii the pipe 6 and connects with the pipe 11, this tap having a valve 15 connected therein, so that communication between the boilers 2 and 1 may be.

opened and closed.

The top of the boiler l is closed by an appropriate sectional cover comprising two semi-circulars'ections 16 and 17 in which provision is made for the passing therethrough of the pipes 5 and 6. These sections may be easily removed, so as to permit easy inspection of the interior of the boiler 1.

In operation, the boiler 1 is first supplied with a quantity of water suiiicient to completely envelop the be 2, this water bee lines through the pipe 6, the tap 14:, the valve 15, and the pipe 11. After a suiiicient quantity of water has been admitted to the boiler 1 the valve 15 is closed, whereupon the lighting of the ill beet the Water which. has found its way into the coil 8. This heated water wiii rise in the pipe 11 and enter the boiler l enci its piece will be taken by cold water which enters the coil from the bottom burner 9 w of the boiler 1 through the pipe 12. lntlzis may :1 circniction is set up 1n the boiler l. and the water contained therein is mine to a uniform"ternpereinrc. This hot water surrounding the. boiler 52- trensfers its heat to the water contained therein and admitted thereto from the pressure main by tlzepipe 5. The boiler 2 is thus subjccteci to a uniform temperature and the Water contained therein is uniformly heated, the inner boiler deriving a longerilii t because of its inetliod of beating the Water.

. The errangeliccnt of having an outer the nseeeoe therein Will permit the efiective transfer the heat of the boiler to the ater which passes through the coil.

What is claimed as new and useful is: 1. in e device of the kind set forth, a pair of boilers comprising an outer holler and 'eninner boiler, means for connecting the inner boiler to a pressure main, a water heater, connections between the water heater and the upper and lower ends of the outer boiler whereby a circulation may be set up in theletter, a valve. controlled connection between said means and said connections,

end-.dreinsfor botli boilers,

2. In e device. of the kind set forth, a pair oi' -boilersfcomprising an outer boiler and an inner boiler, means for: connecting the inner boiler to a pressure main, a Water heater, connections between the Water heater and the upper and lower ends. of the outer boiler whereby a circulation may be set up in the letter, a valve controlled connection between the said means and said connections,

the outer boiler being opened at its upper end, a section and dre'ins for both boilers.

- In testimony whereof I affix my signature.

WILLIAM .JHWOODWARD.

:11 cover for said outer boiler, 

